📞 +34 671 64 55 13
Contact

Freelance SEO

A senior SEO consultant, not an agency layer

I'm Carles Duarte, a freelance SEO consultant. For more than 20 years I've been growing digital projects: media, marketplaces, e‑commerce, SaaS and multilingual portals. When you work with me, you talk to me: no account managers, no filler reports, no templates.

I work with a measurable, prioritized approach backed by data science and artificial intelligence, so every hour you invest in SEO returns clear qualified traffic and business impact.

Book a free call
Carles Duarte — Freelance SEO consultant · Founder of Boost with AI

When does a freelance SEO make sense?

You don't always need an agency. Sometimes you need someone who knows exactly what to fix and in which order.

What does working with a freelance SEO include?

✔️

Business‑focused SEO strategy

A roadmap prioritized by impact and effort. First what moves the needle, then the rest.

✔️

Technical SEO with no middlemen

Crawling, indexing, performance, architecture and migrations. I speak your developers' language because I code too.

✔️

Visibility in search engines and AI

I optimize for Google and also for AI‑generated answers: entities, citable content and topical authority.

✔️

Data‑driven content and semantics

Semantic and search‑intent analysis to find opportunities your competitors overlook.

✔️

Automation and applied AI

Scripts, dashboards and AI workflows so your team spends time deciding, not gathering data.

✔️

Training for your team included

I teach you to keep SEO running on your own. The goal isn't for you to depend on me forever.

Who's behind this

Carles Duarte

Carles Duarte LinkedIn

Freelance SEO consultant · Founder of Boost with AI

More than 20 years leading the digital growth of brands across every sector. Expert in SEO, AI, web development and digital product, applying artificial intelligence to improve online visibility and optimize conversion.

Co‑founder of a media group with two outlets specialized in technology and logistics, Kippel01 and Información Logística, where I apply daily the same things I implement for my clients.

I work from Barcelona with national and international projects, in Spanish, Catalan and English.

Ways to work together

Ongoing consulting

Monthly support: strategy, prioritization, implementation reviews and results tracking.

One‑off project

Audit, migration, redesign or launch. Fixed scope, clear deliverable and an action plan.

Technical SEO on demand

I embed with your product or development team to unblock whatever is holding you back.

In‑company training

Hands‑on SEO and applied AI sessions for marketing, content or development teams.

Tools and platforms

I work with the most widespread CMSs, stacks and tools on the market

  • WordPress
  • PrestaShop
  • Magento
  • PHP
  • Semrush
  • Ahrefs
  • Screaming Frog
  • SerpApi

Projects I work with

Carles Duarte

Marketplaces
portales, SaaS
Startups &
scale‑ups
Sitios
multilingües
E‑commerce
Medios &
Blogs

What you get

➔ Direct contact with the consultant, always

➔ Concrete actions, no fluff

➔ Technical judgement proven on large projects

➔ Measurable impact on traffic and business

➔ Knowledge that stays in your team

How I work

1
Free initial call
You tell me where you are and what's blocking you. If I can't help, I'll say so on that same call.
2
Diagnosis and proposal
I review the project in depth and propose scope, timing and budget. No generic checklists.
3
Prioritized roadmap
An action plan ordered by impact and effort, adapted to the resources you actually have.
4
Supported implementation
I work with your team or vendors, review what ships and unblock whatever is needed.
5
Measurement and adjustment
Results tracking with data and continuous adjustment based on what works.

Frequently asked questions

What exactly does a freelance SEO do?
A freelance SEO is an independent consultant who defines and executes your organic search strategy: technical analysis, architecture, content, authority and measurement. The difference with an agency is that you work directly with the person doing the work.
Freelance SEO or agency: which is better?
It depends on volume. If you need to ship a lot of content or run parallel campaigns, an agency brings capacity. If you need senior judgement, decision speed and focus, a freelancer gives you more value per euro. On large projects I often work alongside agencies and in‑house teams.
How much does a freelance SEO cost?
It depends on scope: a one‑off audit is not the same as monthly support or a migration. I always send a fixed quote before starting, with defined deliverables and no lock‑in.
How long until I see results?
Technical improvements show within weeks; traffic and conversion impact usually consolidates between months 3 and 6, depending on how competitive your sector is and your domain's starting authority.
Do you work with international or multilingual projects?
Yes. I have experience with multilingual sites, hreflang, international structures and expansion into new markets. I work in Spanish, Catalan and English.
Can you work with my development team?
Yes, and that's the norm. I come from web development and digital product, so I deliver actionable tickets and review implementations before and after they ship.
How do you use artificial intelligence in SEO?
I use it to analyze data at scale, spot semantic opportunities and automate repetitive tasks. I also work on visibility inside AI platforms themselves, which are now a discovery channel of their own.
What kind of projects do you work with?
Media and blogs, marketplaces and portals, e‑commerce with deep catalogues, SaaS and growth‑stage startups. Also projects starting from scratch that want to do it right from day one.

Shall we talk?

Tell me your starting point and where you want to grow. The first call is free and you'll leave it with a clear idea of where to begin.

Book a call